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Finding the Fourth Proportional to 444,644.79, 666,964.99 and 107,685.43

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Solution

The fourth proportional to 444,644.79, 666,964.99 and 107,685.43 is: 161,527.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,644.79 : 666,964.99 = 107,685.43 : x
  2. Step 2: Convert to fraction form
    444,644.79/666,964.99 = 107,685.43/x
  3. Step 3: Cross multiply
    444,644.79x = 666,964.99 × 107,685.43
  4. Step 4: Simplify right side
    444,644.79x = 71,822,411,743.10
  5. Step 5: Solve for x
    x = 71,822,411,743.10/444,644.79
  6. Step 6: Final answer
    x = 161,527.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.